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Title: Quantum chameleons

Abstract

We initiate a quantum treatment of chameleonlike particles, deriving classical and quantum forces directly from the path integral. It is found that the quantum force can potentially dominate the classical one by many orders of magnitude.We calculate the quantum chameleon pressure between infinite plates, which is found to interpolate between the Casimir and the integrated Casimir-Polder pressures, respectively in the limits of full screening and no screening. To this end we calculate the chameleon propagator in the presence of an arbitrary number of one-dimensional layers of material. For the Eöt-Wash experiment, the five-layer propagator is used to take into account the intermediate shielding sheet, and it is found that the presence of the sheet enhances the quantum pressure by two orders of magnitude. As an example of implication, we show that in both the standard chameleon and symmetron models, large and previously unconstrained regions of the parameter space are excluded once the quantum pressure is taken into account.

Authors:
 [1];  [2]
  1. Univ. Paris-Saclay, Gif-sur-Yvette (France). Institut de Physique
  2. California Inst. of Technology (CalTech), Pasadena, CA (United States). Walter Burke Inst.; ICTP-SAIFR & IFT-UNESP, São Paulo (Brazil)
Publication Date:
Research Org.:
California Inst. of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); São Paulo Research Foundation (FAPESP)
OSTI Identifier:
1597453
Grant/Contract Number:  
[SC0011632; 2011/11973; 2014/21477-2; 2018/11721-4]
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
[ Journal Volume: 99; Journal Issue: 10]; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 79 ASTRONOMY AND ASTROPHYSICS; Casimir effect & related phenomena; Dark energy; Laboratory studies of gravity

Citation Formats

Brax, Philippe, and Fichet, Sylvain. Quantum chameleons. United States: N. p., 2019. Web. doi:10.1103/PhysRevD.99.104049.
Brax, Philippe, & Fichet, Sylvain. Quantum chameleons. United States. doi:10.1103/PhysRevD.99.104049.
Brax, Philippe, and Fichet, Sylvain. Mon . "Quantum chameleons". United States. doi:10.1103/PhysRevD.99.104049. https://www.osti.gov/servlets/purl/1597453.
@article{osti_1597453,
title = {Quantum chameleons},
author = {Brax, Philippe and Fichet, Sylvain},
abstractNote = {We initiate a quantum treatment of chameleonlike particles, deriving classical and quantum forces directly from the path integral. It is found that the quantum force can potentially dominate the classical one by many orders of magnitude.We calculate the quantum chameleon pressure between infinite plates, which is found to interpolate between the Casimir and the integrated Casimir-Polder pressures, respectively in the limits of full screening and no screening. To this end we calculate the chameleon propagator in the presence of an arbitrary number of one-dimensional layers of material. For the Eöt-Wash experiment, the five-layer propagator is used to take into account the intermediate shielding sheet, and it is found that the presence of the sheet enhances the quantum pressure by two orders of magnitude. As an example of implication, we show that in both the standard chameleon and symmetron models, large and previously unconstrained regions of the parameter space are excluded once the quantum pressure is taken into account.},
doi = {10.1103/PhysRevD.99.104049},
journal = {Physical Review D},
number = [10],
volume = [99],
place = {United States},
year = {2019},
month = {5}
}

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